Setting device.



w. F STRAUB.

SETTING DEVICE.

APPLICATION FILED DEC. 9, I912.

Patented Apr. 27, 1915.

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APPLICATION FILED DEC.9, I912.

Patented Apr. 27, 1915.

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WILLIAM F. STRAUB, OF CHICAGO, ILLINOIS, ASSIGNOR T0 ELECTRIC TIME RECORDER comm, OF CHICAGO, ILLINOIS.

SETTING DEVICE.

Specification of Letters Patent.

Application filed December 9, 1912.. Serial No, 735,720.

To all whom it may concern:

Be it known that I, Wn ..LIAM F. STRAUB, a citizen of the United States, residing at Chicago, in the county of Cook and State of Illinois, have invented a certain new and useful Improvement in Setting Devices, of which the following is a full, clear, concise, and exact description, reference being had to the accompanying drawingsfforming a part of this specification.

My invention relates to signaling systems and is of more particular utility in connection with those systems adapted for transmittin time to a distance.

My invention relates particularly to those systems as set forth in the patent to Albert A. Radtke, No. 921,280, issued May 11, 1909 in which a secondary clock is provided with.

an armature, which armature controls the hands of the said secondary clock, and which armature is under the influence of three electromagnets which periodically rotate said armature in accordance with impulses received over a line circuit from a master clock. In devices of this kind it is frequently true that either the master clock-has lost time or thaton account of the stoppage of current or for other reasons the impulses have not been properly transmitted to set the secondary clocks. The master clock of course does not need to have any hands to indicate the time, the master-clock serving merely to send the impulses at prescribed times. If therefore the secondary clocks do not indicate the-correct time it is of great utility to have some device interposed between the master clock and the secondary clocks by reason of which additional impulses may be transmitted-so that the secondary clocks may be properly set toindicate the correct time.

My invention is designed to accomplish this result in such a manner that the master clock does not need to be changed at all or reset in order to reset the secondary clocks. I will describe one form which my invention may take by referring to the accompanying. drawin s in which Figure 1 is a iagrammatic view of apparatus arranged in accordance with my invention; Fig. 2 is a side view of the parthrough the interposition of suitable mechanism to be presently explained to actuate a secondary clock 10 whose hands are controlled through the agency of a suitable armature 11 under the control of three electromagnets 12, 13 and 14. A further line wire 15 having a source of current such as a battery associated therewith leads to a common terminal of the electromagnets 12, 13 and 14 and connects with the central con tact member 4 of the master clock mechanism.

It will be seen that the position of the brush 5 governs as to which electro'magnet is energized and the armature 11 moves progressively in one-direction of rotation as in the said Radtke patent in accordance with this cycle of energizations of the said electromagnets. Now if the secondary clocks do not indicate the proper time it is not necessary to interfere at all with the master clock whichis a delicate mechanism, but I have provided means. whereby impulses may be transmitted without interfering with the master clock. These means consist ofthree brushes respectively 17, 18

but insulated therefrom. These brushes bear respectively continuously upon centrally lo cated contacts 21, 22 and 23 and are adapted to engageat-their opposite extremities with three segmental contacts, each to each. re-

Patented Apr. 27, 1915.

and 19 all mounted upon a common shaft 20, v

spectively 24, 25 and 26, all segments 24 being connected together to the conductor 8 and all segments 26 being connected together to,the conductor 9. A suitable handle 27 is provided to rotate the shaft 20.,

Now whenever the shaft 20is rotated it carries all of the brushes with it. In the position of the parts as shown, only the central contact 21 is alive. Now, rotating the shaft 20 will bring brush 19 respectively over the contacts 24, 25 and 26, and thereby successively energize magnets 12, 13 and 14 in the order named to thereby actuate the armature 11 and change the indication of the secondary clock 10. Should the brush 5 be on any other segment 2, for instance, then the brush 17 would perform the same service as the brush 17 under the conditions assumed. Similarly brush 18 would be operative if the brush 5 were temporarily in association with the segment 1. From this it will be seen that intermediate mechanism is provided to set the secondary clocks independently of the master clock. The particular switch mechanism employed is shown more clearly'in Figs. 2, 3 and 4 in which a suitable base portion 28 is provided with a cover 29, which cover has secured thereto the handle 27. This handle has a projection 30 adapted to engage a pin 31 provided upon the triangular element 32. This triangular element 32 is adapted to secure rotation of the brushes as will presently appear, an arm 33 held by a spring 34 in the position shown preventing the element 32 from occupying any but one of three normal resting positions to insure having the brushes 1?, 18 and 19 at some point on the respective segmental contacts. The position of the parts as described in connection with Fig. 1 will be readily found in Fig. 2, projections such as 35 and contact posts such as 36serving to conduct the terminals to the central segments 21,22 and 23 respectively. The outer contact segments of which the corresponding ones are connected together are shown as connected together by the posts such as 37 and 38.

By referring to Fig. i it will be seen that the shaft 39 is controlled by the sleeve id, which sleeve is secured to the element 32 by the screw l1. This sleeve 40 engagesa projection on a sleeve 42, there being two additional sleeves l3 and 44:, each interlocking by means of projections as shown. The sleeves d2, 43 and id are provided with an insulating collar 45 respectively to which the brushes associated with the particular sleeve are attached, the brushes of course being insulated from the respective sleeves upon which they are mounted.

From what has been described, the nature of my invention will be apparent to those skilled in the art, and the invention is of course capable of considerable modification from the structure herein disclosed.

Having however described herein one formwhich my invention may take, what I claim as new and desire to secure by Letters Patent is."

ii. A device of the "character described having a master clock adapted to transmit impulses in rotation, a secondary clock operated thereby, line wires uniting said clocks over which said impulses are transmitted, and means interposed between said clocks to super-pose on said wires additional impulses in rotation to set said secondary clock.

2. A device of the character described having a master clock adapted to transmit impulses in rotation, a secondary clock operated thereby, line wires uniting said clocks over which said impulses are transmitted, and means interposed between said clocks to superpose on said wires additional impulses in rotation to set said secondary clock, said means including a plurality of contact arms and a plurality of contact elements for each arm.

3. A device of the character described having a master clock provided with a plurality of contact segments adapted to transmit impulses in rotation, a secondary clock operated thereby, line wires uniting said clocks over which said impulses are transmitted, and means interposed between said clocks to superpose on said wires additional impulses in rotation to set said secondary clock, said means including a plurality of contact arms and a plurality of contact elements for each arm, said arms being electrically associated in a given order with the contact segments of said master clock.

a. A device of the character described having a master clock adapted to transmit impulses in rotation, a secondary clock operated thereby, line wires uniting said clocks over which said impulses are transmitted, and means to break said line wires and reconnect them in difierent order, said means including a plurality of synchronously movable switch arms, and a plurality of contact segments for each switch arm, corresponding segments being connected together.

5. A device of the character described having a'master clock adapted to transmit impulses in rotation, a secondary cloclr operthereby, line wires uniting said clocks over which said impulses 2f". transmitted, means interposed between said clocks to superpose on said wires additional impulses in rotation to set said secondarv clock, said means including a plurality or contact arms and a plurality of contact elements for each arm, said contact arms being synchronously movable, and means for rotating said arms,

' 6. A device of the character described having a master clock adapted to transmit impulses in rotation, a secondary clocl: operated thereby, line wires uniting said clocks over which said impulses are trans mitted, and means interposed between said clocks to superpose on saiclwires additional impulses in rotation to set said secondary clock, said means including a plurality of contact arms, a plurality of contact elements for each arm, saioi consecfiz arms being synmy name this 29th &ay of November, A. D., chronously movable, means for rotating sefl 19126 arms, a 10st motion connection between. saw

means and said arms, and spring controlled; WILLIAM STBAUB' 5 means to define the normal resting positions Witnesses:

of said arms. 0. M. WERMIGH,

In Witness whereof, I hereunto subscribe HAZEL ANN JONES; 

